Search results for "circle"
showing 10 items of 122 documents
Intracranial pathology of the visual pathway.
2004
Intracranial pathologies involving the visual pathway are manifold. Aligning to anatomy, the most frequent and/or most important extrinsic and intrinsic intracranial lesions are presented. Clinical symptoms and imaging characteristics of lesions of the sellar region are demonstrated in different imaging modalities. The extrinsic lesions mainly consist of pituitary adenomas, meningeomas, craniopharyngeomas and chordomas. In (asymptomatic and symptomatic) aneurysms, different neurological symptoms depend on the location of aneurysms of the circle of Willis. Intrinsic tumors as astrocytoma of any grade, ependymoma and primary CNS-lymphoma require the main pathology in the course of the visual …
Application of spaces of subspheres to conformal invariants of curves and canal surfaces
2013
S2-lukija tulkitsijana selkomukautetun kaunokirjallisuuden lukupiirissä
2020
This article discusses reading circles of adult Finnish as a second language (L2) readers. The books that were read and discussed in the circles were easy-to-read fiction. The study focuses on how the readers interpret what they read and what kind of support they need for their interpretations. The analysis utilizes the concept of scaffolding, used in socio-cultural learning theory. The readers’ reading stances vary from what is literally said in the text to creating their own interpretations of the hidden meanings of the text. The latter are not very common in the reading circles, although many participants express a wish to create and discuss interpretations too. The analysis shows that i…
Curve packing and modulus estimates
2018
A family of planar curves is called a Moser family if it contains an isometric copy of every rectifiable curve in $\mathbb{R}^{2}$ of length one. The classical "worm problem" of L. Moser from 1966 asks for the least area covered by the curves in any Moser family. In 1979, J. M. Marstrand proved that the answer is not zero: the union of curves in a Moser family has always area at least $c$ for some small absolute constant $c > 0$. We strengthen Marstrand's result by showing that for $p > 3$, the $p$-modulus of a Moser family of curves is at least $c_{p} > 0$.
Foreste a tavola:i consumi alimentari inducono la crescente deforestazione tropicale e sub-tropicale anche in Italia
2021
L’agricoltura costituisce da sempre una grande minaccia per gli ecosistemi naturali del nostro pianeta,e non solo in quanto attività umana essenziale per la produzione di cibo. Attualmente, in particolarenella regione tropicale e sub-tropicale, le attività agricole sono fattori di pressione cruciali per il mantenimentodei cicli di vita di ecosistemi essenziali per la biosfera, complessi e resilienti, come le foreste. Lesocietà contemporanee, essenzialmente urbane e sempre più disconnesse dai processi naturali ed ecologici,tendono a dimenticare, o semplicemente non considerare, le responsabilità di queste pressioni insostenibili.Tra le maggiori cause di deforestazione, quattro commodities ri…
Ageing in an autobiographical context
2000
A cohort study was carried out in 1990 in Jyväskylä, central Finland among 80-year-old residents as part of the Evergreen project. A total of 262 people born in 1910 were interviewed. In addition to epidemiological data, tape-recorded narrative stories focusing on the ageing experience were collected from a subsample of 20 people (10 men and 10 women). A five-year follow-up was carried out with the same cohort in 1995. Out of the 20 people in the original subsample, 17 (8 women and 9 men) were still alive to describe their ageing experience at 85. The analysis proceeded along the hermeneutic circle in the form of dialogue, first with the elderly narrators and then with the tape-recorded mat…
Spectral analysis of the Neumann-Poincaré operator and characterization of the stress concentration in anti-plane elasticity
2012
When holes or hard elastic inclusions are closely located, stress which is the gradient of the solution to the anti-plane elasticity equation can be arbitrarily large as the distance between two inclusions tends to zero. It is important to precisely characterize the blow-up of the gradient of such an equation. In this paper we show that the blow-up of the gradient can be characterized by a singular function defined by the single layer potential of an eigenfunction corresponding to the eigenvalue 1/2 of a Neumann–Poincare type operator defined on the boundaries of the inclusions. By comparing the singular function with the one corresponding to two disks osculating to the inclusions, we quant…
Management as Intervention
2015
In this chapter, Management as Intervention, Richard Ennals presents ideas on an alternative perspective on management. The chapter seeks to apply ideas of sustainability, which is seen as mutual competence building development, to business management and business education. Management is presented in the context of the project “Higher Education in a Sustainable Society”. It takes the opportunity to offer a distinctive Norwegian perspective, going beyond conventional capitalist accounts of business and business education. It offers alternative links to the university curriculum, and recognises that universities are themselves businesses. Management as Intervention may help unify the discour…
Radon transform as a set of probability distributions
2009
It is proved that the Radon transform of the Wigner function gives the probability distributions related to measuring the observable operators obtained as linear combinations of position and momentum of the relevant particle. The generalization to an arbitrary number of degrees of freedom is given.
Higher Education in a Knowledge Society: How to Close the Knowledge Divide
2015
In this chapter, Higher Education in a Knowledge Society: how to close the knowledge divide, Richard Ennals and Hans Christian Garmann Johnsen discuss education policy in UK and Norway, and how national conditions might influence the role that universities take in social development. The new communicative reality: mobilisation and education breaking the institutional barriers. They can be met by initiatives like Quality Circles, or a Penny University. The underlying big problem is to what extent universities are really taking a role in reducing the serious knowledge and education level divide we see in western societies.